Ullah, M., Kar, N., Karmaker, P., Alam, S., Mamun, M., Rahman, T., Habib, S. and Majumder, A. (2011) “Prevention of Stroke in Nonvalvular Atrial Fibrillation”, Cardiovascular Journal, 1(1), pp. 64–71. doi: 10.3329/cardio.v1i1.8217.